package org.wanho.shop.service;

import org.wanho.shop.vo.Cart;

/**
 * Author：汤小洋
 * Date：2023-04-26 15:13
 * Description：<描述>
 */
public interface CartService {
    public void add(Cart cart,int productId);

    void removeById(Cart cart, int productId);

    void modify(Cart cart, int productId, int num);
}
